WO2022065686A1 - 코폴리에스테르의 제조방법 - Google Patents
코폴리에스테르의 제조방법 Download PDFInfo
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- WO2022065686A1 WO2022065686A1 PCT/KR2021/010685 KR2021010685W WO2022065686A1 WO 2022065686 A1 WO2022065686 A1 WO 2022065686A1 KR 2021010685 W KR2021010685 W KR 2021010685W WO 2022065686 A1 WO2022065686 A1 WO 2022065686A1
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- copolyester
- titanate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
- C08G63/183—Terephthalic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/199—Acids or hydroxy compounds containing cycloaliphatic rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
- C08G63/692—Polyesters containing atoms other than carbon, hydrogen and oxygen containing phosphorus
- C08G63/6924—Polyesters containing atoms other than carbon, hydrogen and oxygen containing phosphorus derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/6926—Dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0041—Optical brightening agents, organic pigments
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/53—Phosphorus bound to oxygen bound to oxygen and to carbon only
- C08K5/5317—Phosphonic compounds, e.g. R—P(:O)(OR')2
- C08K5/5333—Esters of phosphonic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
Definitions
- the present invention relates to a process for the production of copolyesters. More specifically, it relates to a method for producing a copolyester in which yellowing is minimized while reducing the use of a cobalt-based colorant by using a specific heat stabilizer.
- Polyester resin has excellent mechanical and chemical properties, so it can be used for multi-purpose applications, for example, conventionally for drinking water containers and medical, food packaging materials, food containers, sheets, films, automobile molded products, etc. has been applied in the field of
- a typical polyester resin is polyethylene terephthalate (PET), which is polymerized using terephthalic acid as a dicarboxylic acid component and ethylene glycol as a glycol component. It is widely used due to its chemical properties and dimensional stability.
- PET polyethylene terephthalate
- polyethylene terephthalate resin is a crystalline resin and has low transparency, so it has limitations in application to products such as sheets, films, food packaging papers, and cosmetic containers requiring transparency.
- PETG resin is an amorphous resin, and has the advantage of being able to manufacture transparent and thick films or containers that are difficult to manufacture with conventional PET resins. PETG resin can produce transparent products of any thickness that can be molded without whitening due to crystallization.
- PETG resin has a problem of yellowing due to side reactions due to the high activity of the catalyst during polymerization, and research to solve this problem is continuing.
- the present invention provides a method for producing a copolyester resin having excellent color and transparency by minimizing yellowing while reducing the use of a cobalt-based coloring agent by using a specific heat stabilizer.
- the phosphorus-based thermal stabilizer is calcium bis [monoethyl (3,5-di-tert-butyl-4-hydroxylbenzyl) phosphonate] (calcium bis [monoethyl (3,5-di-tert-butyl-4-hydroxylbenzyl) ) phosphonate]) or triethyl phosphonoacetate.
- the use of a cobalt-based colorant is reduced by using a specific heat stabilizer, and yellowing is minimized, so that a copolyester resin having excellent color and transparency can be manufactured.
- the copolyester resin obtained by the method for producing the copolyester of the present invention has excellent physical properties such as transparency and color, and is not limited thereto, but shrinks particularly in cosmetics, beverages, and food-related containers requiring transparency. It can be usefully applied to films, sheets, and various molded articles.
- each component when it is said that each component is formed “on” or “on” each component, it means that each component is directly formed on each component, or other components are each It means that it may be additionally formed between layers, on an object, or on a substrate.
- the method for producing a copolyester according to an embodiment of the present invention in the presence of a titanium-based catalyst, terephthalic acid (terephthalic acid), ethylene glycol (ethyleneglycol), and cyclohexanedimethanol (1,4-cyclohexanedimethanol, CHDM) esterification; and polycondensing the reactants of the esterification reaction in the presence of a phosphorus-based thermal stabilizer, wherein the phosphorus-based thermal stabilizer is calcium bis[monoethyl(3,5-di-tert-butyl-4-hydroxylbenzyl)phosphonate ] (calcium bis[monoethyl(3,5-di-tert-butyl-4-hydroxylbenzyl)phosphonate]) or triethyl phosphonoacetate.
- a titanium-based catalyst terephthalic acid (terephthalic acid), ethylene glycol (ethyleneglycol), and cyclohexanedimethanol
- terephthalic acid, ethylene glycol, and cyclohexanedimethanol (1,4-cyclohexanedimethanol, CHDM) are esterified.
- a polyester resin is a polymer synthesized through an esterification reaction and a polycondensation reaction using a dicarboxylic acid component and a glycol component as monomers.
- Polyethylene terephthalate (PET) which is a kind of polyester, is a resin polymerized using terephthalic acid as a dicarboxylic acid component and ethylene glycol as a glycol component. It is a representative crystalline resin in
- polyethylene terephthalate resin is a crystalline resin and has low transparency, so it has limitations in application to products such as sheets, films, food packaging papers, and cosmetic containers requiring transparency.
- PETG resin is the secret
- CHDM (1,4-cyclohexanedimethanol) as a comonomer of a glycol component in addition to terephthalic acid and ethylene glycol
- PETG resin is the secret
- PETG resin can produce transparent products of any thickness that can be molded without whitening due to crystallization.
- it has bright colors and excellent gloss, excellent printability, impact resistance, chemical resistance, and easy secondary processing. .
- the manufacturing method of the present invention is a copolyester resin, and more specifically, a glycol-modified PET resin polymerized using cyclohexanedimethanol (1,4-cyclohexanedimethanol, CHDM) as a comonomer of a glycol component in addition to terephthalic acid and ethylene glycol ( It is for the manufacture of glycolmodified polyethylene terephthalate (PETG).
- PETG glycolmodified polyethylene terephthalate
- dicarboxylic acid component other dicarboxylic acids may be additionally used in addition to the terephthalic acid as long as the object of the present invention is not impaired.
- glycol component for example, other glycols other than ethylene glycol and cyclohexanedimethanol may be used in a range that does not impair the purpose of the present invention.
- the molar ratio of the dicarboxylic acid component containing terephthalic acid and the glycol component containing ethylene glycol and cyclohexanedimethanol may be about 1:1 to about 1:2.
- the esterification reaction is a reaction between the dicarboxylic acid component and the glycol component in a molar ratio of 1:1, but a more efficient esterification reaction may occur when the dicarboxylic acid component and the glycol component have the above molar ratio. .
- cyclohexanedimethanol is about 10 mol% or more, or about 20 mol% or more, or about 30 mol% or more, and 90 mol% or less, or about 80 mol% or less, or about 70 mol% or less, or about 50 mol% or less.
- the cyclohexanedimethanol be included in the above-mentioned range.
- the step of esterifying the terephthalic acid, ethylene glycol, and cyclohexanedimethanol is performed in the presence of a titanium-based catalyst.
- the titanium-based catalyst is, for example, tetraethyl titanate, acetyl tripropyl titanate, tetrapropyl titanate, tetrabutyl titanate, polybutyl titanate, 2-ethylhexyl titanate, octylene glycol titanate, lactate It may be titanate, triethanolamine titanate, acetylacetonate titanate, ethylacetoacetic ester titanate, isostearyl titanate, or titanium dioxide, but the present invention is not limited thereto.
- the content of the titanium-based catalyst is about 5 ppm or more, or about 10 ppm or more, or about 15 ppm or more, while the total content of titanium included in the titanium-based catalyst is about 15 ppm or more, based on the weight of the finally produced copolyester. It may be added to be 200 ppm or less, or about 150 ppm or less, or about 100 ppm or less. If the total content of titanium is too small, it is difficult to exhibit sufficient catalytic activity, so that the polymerization time is prolonged.
- the step of esterifying the terephthalic acid, ethylene glycol, and cyclohexanedimethanol is about 220 to about 270 ° C., preferably about 1 to about 1 to about 260 ° C. at a temperature of about 240 ° C. to about 260 ° C. for about 10 hours, preferably for about 2 to about 5 hours.
- the temperature during the esterification reaction is lower than 220° C., the reaction time may be prolonged, and the possibility of yellowing of the polyester resin produced with a long reaction time may increase.
- the esterification reaction proceeds at a temperature exceeding 270° C., there may be a problem of yellowing due to a high reaction temperature.
- the esterification reaction may be performed in a batch or continuous manner, and the terephthalic acid, ethylene glycol, and cyclohexanedimethanol may be added separately or in combination.
- a phosphorus-based thermal stabilizer is added to the polycondensation reaction step to reduce thermal decomposition of the copolyester, and calcium bis[monoethyl (3,5-di-tert-butyl) as the phosphorus-based thermal stabilizer is used.
- -4-hydroxylbenzyl)phosphonate] calcium bis[monoethyl(3,5-di-tert-butyl-4-hydroxylbenzyl)phosphonate]
- triethyl phosphonoacetate do.
- the thermal stabilizer inhibits the generation of a color body, which is generated by heat in the esterification exchange reaction and the polycondensation reaction, or controls the activity of the catalyst to suppress unintended addition reactions, and prevents thermal decomposition in time solid-state polymerization It suppresses the yellowing of the finally formed polyester and plays a role in making the color transparent and colorless.
- the manufacturing method of the present invention by using a phosphorus-based thermal stabilizer of a specific structure in manufacturing the copolyester resin, the disadvantage of the titanium-based catalyst, which is vulnerable to discoloration, is compensated, and the yellowing of the finally formed copolyester is suppressed, resulting in color and Transparency can be improved.
- triethyl phosphate is mainly used as a phosphorus-based heat stabilizer, but when triethyl phosphate is used as a heat stabilizer in the preparation of glycol-modified PET resin, color characteristics cannot be sufficiently improved.
- the content of the phosphorus compound is based on the weight of the finally produced copolyester, and the content of elemental phosphorus contained in the triethyl phosphonoacetate is It may be added in an amount of about 5 ppm or more, or about 10 ppm or more, or about 15 ppm or more, and about 100 ppm or less, or about 80 ppm or less, or about 50 ppm or less. It may be preferable to add triethyl phosphonoacetate in the above range from the viewpoint of preventing viscosity increase and thermal decomposition in polyester polymerization.
- a cobalt-based colorant may be additionally added to improve color.
- the cobalt-based colorant include cobalt acetate, cobalt acetylacetonate, cobalt benzoylacetonate, cobalt hydroxide, cobalt bromide, and cobalt bromide.
- Cobalt chloride, cobalt iodide, cobalt fluoride, cobalt cyanide, cobalt nitrate, cobalt sulfate, cobalt selenide ( Cobalt selenide), cobalt phosphate (Cobalt phosphate), cobalt oxide (Cobalt oxide), cobalt thiocyanate (Cobalt thiocyanate) or a cobalt-based compound such as cobalt propionate (Cobalt propionate) may be mentioned, but is not limited thereto. .
- the content of the cobalt-based colorant is about 3 ppm or more, or about 5 ppm or more, or about 7 ppm or more, and the cobalt element content is about 100 ppm or less, or about 90 based on the weight of the finally produced copolyester. It can be added so that it may be less than or equal to ppm, or less than or equal to about 70 ppm. When the cobalt compound is added in the above range, coloration can be inhibited without causing a decrease in brightness or thermal stability of the copolyester.
- step of adding the cobalt compound in the present invention is not limited to the step of the esterification reaction during the polymerization reaction or the step of polycondensing the reactants of the esterification reaction, and can be administered at any stage.
- the step of polycondensing the reactants of the esterification reaction is carried out at a temperature of about 250 to about 300 °C, preferably about 260 to about 290 °C for about 30 minutes to about 6 hours, preferably about 1 to about 4 hours. can do.
- a temperature of about 250 to about 300 °C, preferably about 260 to about 290 °C for about 30 minutes to about 6 hours, preferably about 1 to about 4 hours. can do.
- the temperature during the polycondensation reaction is lower than 250° C., the reaction time is prolonged, a low molecular weight copolyester is formed, and the possibility of yellowing of the polyester resin produced with a long reaction time may increase. There may be a problem of yellowing due to a high reaction temperature when the temperature proceeds in excess of 300 °C.
- the polycondensation of the reactants of the esterification reaction may be performed by reacting under reduced pressure of about 760 to about 1 mmHg, preferably about 760 to about 0.01 mmHg.
- reduced pressure of about 760 to about 1 mmHg, preferably about 760 to about 0.01 mmHg.
- the copolyester resin obtained according to the production method of the present invention may have an intrinsic viscosity (IV) in the range of about 0.5 to about 1.0 dl/g.
- the value of color b is 0 or less, for example 0 or less, or -0.3 or less, or It may be less than or equal to -0.5 and greater than or equal to -3.5, or greater than or equal to -3.2, or greater than or equal to -3.
- the value of color b is 5 or less, for example 5 or less, or 4.5 or less, or 0 or less, and may be -8.0 or more, or -7.5 or more, or -7.0 or more.
- the copolyester obtained according to the manufacturing method of the present invention exhibits a characteristic of suppressing yellowing and having a high degree of blue discoloration preferred for products.
- the L, a, and b color systems are being used internationally as standards for evaluating polyester colors.
- This color numerical value is one of the color systems for standardizing color measurements, and describes recognizable colors and color differences.
- L is the lightness factor and a and b are the color measures.
- the b value representing the yellow/blue balance is an important number in the manufacture of drinking water containers and food packaging materials.
- a positive b value means yellow discoloration, and a negative value means blue discoloration.
- a positive value of a means red discoloration, and a negative value means green discoloration.
- the L value means a numerical factor indicating brightness, and is a very important value like the b value in the manufacture of drinking water containers and food packaging materials.
- the use of the copolyester prepared according to the production method of the present invention is not particularly limited, it can be widely used in food packaging materials, bottles, films, or fibrous plastics requiring particularly excellent transparency, brightness, and color conditions. More specifically, it can be used in cosmetics, beverages, and food-related containers that require transparency, and shrink films, sheets, and various molded articles.
- the temperature of the upper part of the column was maintained at 125° C. or less, and when the water was not discharged any more, the pressure was gradually reduced to drain all the water generated inside the reactor out of the system.
- Irganox 1425 (830 ppm based on the final copolyester) and cobalt acetate (20 ppm based on the final copolyester) were added to the reactor.
- the vacuum capacity was increased to the maximum to finally reach 0.5 mmHg, and the reaction temperature was raised to 270° C. to proceed with the reaction. After that, the reaction was terminated when the target viscosity was reached.
- the obtained copolyester polymer was discharged, cooled and cut to prepare pellets, and then the viscosity, color, molecular weight, etc. were analyzed.
- Example 1 Examples 2 to 4 and Comparative Examples 1 to 2 were performed by varying the content of cobalt acetate, the type and content of the phosphorus-based thermal stabilizer, polymerization time, viscosity, and the like.
- Example 1 20 Irganox 1425, 830 ppm 68
- Example 2 20 40 TEPa, 20 ppm 110 Comparative Example 1 20 40 TEP, 20 ppm 79
- Example 3 20 Irganox 1425, 830 ppm 49
- Example 4 20 40 TEPa, 20 ppm 90 Comparative Example 2 20 40 TEP, 20 ppm 56
- Irganox 1425 is calcium bis[monoethyl(3,5-di-tert-butyl-4-hydroxylbenzyl)phosphonate], TEP stands for triethyl phosphate, and TEPa stands for triethyl phosphonoacetate.
- Polymerization time means the polycondensation reaction time in full vacuum of 0.5 mmHg or less.
- I.V 1/4(R.V-1)/C + 3/4(ln R.V/C)
- the weight average molecular weight (Mw) and the number average molecular weight (Mn) were respectively measured using gel permeation chromatography (GPC).
- the intrinsic viscosity, color values (L, b), weight average molecular weight (Mn), and number average molecular weight (Mn) of the copolyester resins obtained in Examples 1 to 4 and Comparative Examples 1 to 2 were measured and shown in Table 2 below. described.
- Example 1 0.78 63.2 1.7 -3.5 36,800 65,200
- Example 2 0.76 67.9 -0.38 4.5 45,600 72,000 Comparative Example 1 0.78 59.8 -1.3 12 34,900 65,000
- Example 3 0.66 63.2 1.1 -3 32,100 55,400
- Example 4 0.69 61 1.8 -0.6 36,500 56,600 Comparative Example 2 0.72 61.1 -0.4 6.2 33,600 60,300
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
Description
| 티타늄 촉매 (단위: ppm) |
코발트 아세테이트 (단위: ppm) | 인계 열안정제 (단위: ppm) |
0.5mmHg에서의 중합시간 (단위: min) |
|
| 실시예 1 | 20 | 20 | Irganox 1425, 830 ppm | 68 |
| 실시예 2 | 20 | 40 | TEPa, 20 ppm | 110 |
| 비교예 1 | 20 | 40 | TEP, 20 ppm | 79 |
| 실시예 3 | 20 | 20 | Irganox 1425, 830 ppm | 49 |
| 실시예 4 | 20 | 40 | TEPa, 20 ppm | 90 |
| 비교예 2 | 20 | 40 | TEP, 20 ppm | 56 |
| I.V (dl/g) |
Color | Mn (g/mol) |
Mw (g/mol) |
|||
| L | a | b | ||||
| 실시예 1 | 0.78 | 63.2 | 1.7 | -3.5 | 36,800 | 65,200 |
| 실시예 2 | 0.76 | 67.9 | -0.38 | 4.5 | 45,600 | 72,000 |
| 비교예 1 | 0.78 | 59.8 | -1.3 | 12 | 34,900 | 65,000 |
| 실시예 3 | 0.66 | 63.2 | 1.1 | -3 | 32,100 | 55,400 |
| 실시예 4 | 0.69 | 61 | 1.8 | -0.6 | 36,500 | 56,600 |
| 비교예 2 | 0.72 | 61.1 | -0.4 | 6.2 | 33,600 | 60,300 |
Claims (14)
- 티타늄계 촉매의 존재 하에, 테레프탈산(terephthalic acid), 에틸렌글리콜(ethyleneglycol), 및 사이클로헥산디메탄올(1,4-cyclohexanedimethanol, CHDM)을 에스테르화 반응시키는 단계; 및인계 열안정제의 존재 하에 에스테르화 반응의 반응물을 중축합하는 단계를 포함하며,상기 인계 열안정제는 칼슘 비스[모노에틸(3,5-디-터트-부틸-4-하이드록실벤질)포스포네이트] (calcium bis[monoethyl(3,5-di-tert-butyl-4-hydroxylbenzyl)phosphonate]) 또는 트리에틸 포스포노아세테이트(triethyl phosphonoacetate)인, 코폴리에스테르의 제조방법.
- 제1항에 있어서,상기 티타늄계 촉매는, 테트라에틸티타네이트, 아세틸트리프로필티타네이트, 테트라프로필티타네이트, 테트라부틸티타네이트, 폴리부틸티타네이트, 2-에틸헥실 티타네이트, 옥틸렌글리콜티타네이트, 락테이트티타네이트, 트리에탄올아민 티타네이트, 아세틸아세토네이트티타네이트, 에틸아세토아세틱에스테르티타네이트, 이소스테아릴티타네이트, 및 티타늄디옥사이드로 이루어진 군으로부터 선택되는 1종 이상을 포함하는, 코폴리에스테르의 제조방법.
- 제1항에 있어서,상기 티타늄계 촉매의 함량은, 최종적으로 생산되는 코폴리에스테르의 중량에 대하여 상기 티타늄계 촉매에 포함된 티타늄의 함량이 5 ppm 이상 200 ppm 이하인, 코폴리에스테르의 제조방법.
- 제1항에 있어서,상기 테레프탈산, 에틸렌글리콜, 및 사이클로헥산디메탄올을 에스테르화 반응시키는 단계는, 200 내지 270 ℃의 온도에서 1 내지 10 시간 동안 수행하는, 코폴리에스테르의 제조방법.
- 제1항에 있어서,상기 인계 화합물로 칼슘 비스[모노에틸(3,5-디-터트-부틸-4-하이드록실벤질)포스포네이트] (calcium bis[monoethyl(3,5-di-tert-butyl-4-hydroxylbenzyl)phosphonate])를 사용할 때, 상기 인계 화합물의 함량은, 최종적으로 생산되는 코폴리에스테르의 중량에 대하여, 상기 인계 화합물에 포함된 인 원소 함량이 50 ppm 이상 1,000 ppm 이하인, 코폴리에스테르의 제조방법.
- 제1항에 있어서,상기 인계 화합물로 트리에틸 포스포노아세테이트(triethyl phosphonoacetate)를 사용할 때, 상기 인계 화합물의 함량은, 최종적으로 생산되는 코폴리에스테르의 중량에 대하여, 상기 인계 화합물에 포함된 인 원소 함량이 5 ppm 이상 100 ppm 이하인, 코폴리에스테르의 제조방법.
- 제1항에 있어서,상기 중축합하는 단계에서, 코발트계 정색제를 더 포함하는,코폴리에스테르의 제조방법.
- 제7항에 있어서,상기 코발트계 정색제는, 코발트 아세테이트(Cobalt acetate), 코발트 아세틸아세톤에이트(Cobalt acetylacetonate), 코발트 벤조일아세토네이트(Cobalt benzoylacetonate), 코발트 하이드록사이드(Cobalt hydroxide), 코발트 브로마이드(Cobalt bromide), 코발트 클로라이드(Cobalt chloride), 코발트 아이오다이드(Cobalt iodide), 코발트 플로라이드(Cobalt fluoride), 코발트 시아나이드(Cobalt cyanide), 코발트 나이트레이트(Cobalt nitrate), 코발트 설페이트(Cobalt sulfate), 코발트 셀레나이드(Cobalt selenide), 코발트 포스페이트(Cobalt phosphate), 코발트 옥사이드(Cobalt oxide), 코발트 씨오시아네이트(Cobalt thiocyanate) 및 코발트 프로피오네이트(Cobalt propionate)로 이루어진 군으로부터 선택되는 1종 이상을 포함하는, 코폴리에스테르의 제조방법.
- 제7항에 있어서,상기 코발트계 정색제의 함량은 최종적으로 생산되는 코폴리에스테르의 중량에 대하여, 상기 코발트계 정색제에 포함된 코발트 원소 함량이 3 ppm 이상 100 ppm 이하인, 코폴리에스테르의 제조방법.
- 제1항에 있어서,상기 에스테르화 반응의 반응물을 중축합하는 단계는 250 내지 300℃의 온도 및 760 내지 0.01 mmHg의 감압 조건에서 30 분 내지 6 시간 동안 수행하는, 코폴리에스테르의 제조방법.
- 제1항에 있어서,상기 코폴리에스테르는, 고유점도(IV)가 0.65 내지 0.74 dl/g일 때, color b의 값이 -3.5 이상 0 이하인, 코폴리에스테르의 제조방법.
- 제1항에 있어서,상기 코폴리에스테르는, 고유점도(IV)가 0.75 내지 0.80 dl/g일 때, color b의 값이 -8.0 이상 5 이하인, 코폴리에스테르의 제조방법.
- 제1항 내지 제12항 중 어느 한 항의 제조방법으로 제조된, 코폴리에스테르.
- 제13항에 있어서,상기 코폴리에스테르는 화장품, 음료, 식품 관련 용기, 수축 필름, 또는 시트에 사용되는 코폴리에스테르.
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| JP2023519113A JP7594101B2 (ja) | 2020-09-25 | 2021-08-11 | コポリエステルの製造方法 |
| US18/028,418 US12692345B2 (en) | 2020-09-25 | 2021-08-11 | Method for preparing a copolyester |
| EP21872716.2A EP4219587A4 (en) | 2020-09-25 | 2021-08-11 | COPOLYESTER PRODUCTION PROCESS |
| CN202180065199.4A CN116368170A (zh) | 2020-09-25 | 2021-08-11 | 制备共聚酯的方法 |
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| KR1020200124994A KR20220042008A (ko) | 2020-09-25 | 2020-09-25 | 코폴리에스테르의 제조방법 |
| KR10-2020-0124994 | 2020-09-25 |
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| CN117447687B (zh) * | 2023-12-21 | 2024-03-08 | 河南源宏高分子新材料有限公司 | 一种低翘高粘petg共聚酯及其制备方法 |
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| Publication number | Publication date |
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| JP2023542712A (ja) | 2023-10-11 |
| US20230357498A1 (en) | 2023-11-09 |
| CN116368170A (zh) | 2023-06-30 |
| KR20220042008A (ko) | 2022-04-04 |
| EP4219587A4 (en) | 2024-10-16 |
| JP7594101B2 (ja) | 2024-12-03 |
| EP4219587A1 (en) | 2023-08-02 |
| US12692345B2 (en) | 2026-07-28 |
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